Anticorrosive thermal resistance

Anticorrosive thermal resistance

The nominal pressure of a thermal resistor generally refers to the static external pressure that the protective tube can withstand without rupture at operating temperature.

The minimum insertion depth of the thermal resistor should not be less than 8-10 times the outer diameter of its protective sleeve.

Insulation resistance: When the ambient air temperature is 15-35 ℃ and the relative humidity is less than 80%, the insulation resistance is 20 megaohms (voltage 100V)

. The insulation resistance of a splash proof junction box should be 2 megaohms (voltage 100V)

The resistance value (R0) of the thermal resistance temperature sensing element at 0 ℃ and its ratio to the resistance value (R100) at 100 ℃:

Ratio=R100/R

When the graduation numbers are Pt10 and Pt100; R100/R0=1.3850 ± 0.001

When the graduation numbers are Cu50 and Cu100; R100/R0=1.3850 ± 0.002

1. Application

Adopting a new type of anti-corrosion material and wrapped with polytetrafluoroethylene F46, it is suitable for temperature measurement in various corrosive media in petrochemical industry. It is a specialized temperature measuring instrument for the chlor alkali industry.

2. Main technical parameters

Electrical outlet: M20x1.5, NPTI1/2

Thermal response time: ≤ 8S

Protection level: IP65

Explosion proof level: d Å BT4. d Å CT5

A bimetallic thermometer is an industrial instrument suitable for on-site detection of medium and low temperatures, which can be used to directly measure and display gases

The temperature of liquid and steam, with a charged contact bimetallic thermometer, can automatically send control signals when the industrial temperature exceeds the given value

Cut off power or alarm.

Bimetal thermometers have the advantages of being mercury free, easy to read, waterproof, corrosion-resistant, and vibration resistant, and are widely used in power plants.

Mechanical, chemical, textile, petroleum, food and other industrial and scientific research departments.

Bimetal thermometers can be divided into three types: ordinary type, outdoor type, and anti-corrosion type. From their structure, they can be further divided into radial type, axial type

135 ° type, universal type.

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